Try using DDMS to track all the threads running in the system. For example i have noticed that I was using webview to display html content, i noticed that it creates few threads for cookie management session management etc..which increased my memory foot print. So unless you have a serious need for displaying complex html try using normal utility class "Html" in android to display html content. This might be useful for people who are displaying Eula since eula typicall contains html text.
If you have to do network operations try using AndroidHttpClient if you are beginner, it has got some good capabilities for Caching SSL sessions and all it really helps in improving your performance. Always set your socket connection timeouts to something around 60 seconds or some finite values because infinite timeouts can cause deadlocks especially if you drop your connection during ssl handshake.
